Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)

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$49.37

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(30000 available )

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100 Ratings
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Reviews
  • Jake Zeller

    > 3 day

    Used it on my 4.9 ford engine. It did a fantastic job.

  • BlueBird

    > 3 day

    Hubby says this is a great tool in his engine rebuild.

  • Rod Burkhart

    > 3 day

    worked real good.Used it on a ford flathead motor

  • Ab6

    > 3 day

    Spec was crosshatch 30 to 45 degrees. Profiled the wet sleeves first, they were all in spec, so went to town. Low speed drill, brisk in out action achieves great results. Lubricate the hone before every use. Go a little past the return direction so you reduce the low angles at the end of the stroke.

  • bluemoose

    Greater than one week

    Well made and seemed to do a nice consistent job. I just started up the engine I used it on and everything seems to be fine.

  • R. Stubbs

    > 3 day

    Performed as needed

  • Mike M

    > 3 day

    Ive been using these honers for years. Hands down, the best money can buy. Cleans up various bores and preps the cylinders with nice cross-hatching.

  • Bob F.

    > 3 day

    Great for refreshing any EJ25, they have a 99.5MM or 3.91 inch bore for the 4 inch hone works great for them. I have done 2 of them now, put the drill on low speed and squirt oil on them as you go will give good results.

  • Duane Wisozk

    > 3 day

    Worked great!

  • Larry

    Greater than one week

    Worked perfectly on my Deutz F3L912. Left excellent pattern. Absolutely no surprises. Engine runs clean, smooth, like new.

The Flex-Hone® tool was originally created by Brush Research Manufacturing to deglaze cylinder walls in automotive applications. Brush Research embraced the benefits of a plateau finish and pioneered the concept of plateau honing culminating in the introduction of the Flex-Hone tool in 1972. The Flex-Hone has gained many nicknames over the years and including ball hone, ball style hone, flexihone, dingleberry hone, bead brush, glaze breaker and glaze buster. Flexible honing with the Flex-Hone tool produces an oil holding cross hatch pattern and a true plateau finish free of cut, torn and folded metal. Any type or size of cylinder can benefit from the Flex-Hone®. These abrasive bead style brushes are produced in standard diameters from 4mm to 36 inches. Nine abrasive types are offered including silicon carbide, aluminum oxide, boron carbide and diamond allowing the tool to be tailored to finish any base material. A choice of 11 different grit selections are available for precise control of finish parameters. The elimination of peaks results in rapid ring seating, better oil control, reduced seepage in hydraulic and pneumatic applications and provides better seal performance and longer seal life. Successful applications include firearm chambers, shotgun barrels, musical instruments, combustion chambers, air compressors, pumps, valve bodies, valve guides, brake cylinders, wheel cylinders and the list goes on and on. Flex-Hone® tools are also very effective for deburring cross drilled holes, port radiusing and edge blending. Because of its unique construction, the Flex-Hone is self-centering, self-aligning, and self-compensating for wear so it does not require an elaborate set-up or special training. Deburring can be effectively automated and combined in the machining process to allow a complete cylinder finish in one operation or it can be employed as a secondary operation with equal results.

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